Granulator blade



Jan 9, 1923.

H R. STRAIGHT GRANULATOR BLADE. F1 LED JUNE 9 920.

45 through it.

' HALVER R.1STRAIGHT, or ABEL, IQWA.

1 eaanuiiaroa BLADE.

Application filed June 9, 1920. Serial No. 387,765.

To aZZ whom it may concern: a

. Be it known that 1, Hawaii R. STHAlGHfl a citizen of the United Statem residing at Adel in the county of Dallas State of Iowa, have invented a Granulator Blade, of

which the following the specification.

This device relates to devices for granulating semi-substances such as clay, or shale and pertains particu- 1 larly to that class of machines having a and radial blades designed to rotate in a suitable trough.

But blades of this kind have caused considerable trouble due to the fact that the tor- Ward edge of the blades wear round at the periphery, this causes the blades to pinch. the material to be granulated, between the said rounded edge and the wallet the container trough.

This pinching causes a considerable unnecessary power to drive the granulator be sides producing unsatisfactory results.

It is the object of my invention to provide improvements in the blades for granulators and particularly to provide means whereby the cutting pointswill remain coinparatively sharp, also, new and improved means of mounting the blade and reinforc ing the same. i i m Referring to the accompanying drawings:

Fig. 1 is a transverse sectional view of a container and showing my improved blade mounted on a suitable shaft. r

Fig. 2 is segmental top view of the same.

Fig. 3 is a detail end. elevation one of.

my improved blades.

Referring to the drawings the reference numeral 10 indicates the trough or retainer to be used in connection with my improved granulator device andis designed to have rotatively mounted, a longitudinal shaft 11. This shaft 11 is provided with a series of equal distant holes 12 passing transversely The shaft may be rotated by any suitable power. Themanner of mounting this shaft and rotating it form no part of my present invention, and forthat reason has not beenillustrated or described.

apart and provided with a key seat 13, and

so arranged that the blades may be arf improvements in rotary shaft provided with a series of saggard The holes 12 are drilled equal distance Each blade 14: is provided with a shank 15 formed cylindrical and provided with. a key seat 16; Theblade 14 is considerably wider. than the diameter or the shank the shank being so placed that a shoulder 17 is provided to therear side of it, when in position-in the said shaft: The shoulder 17 terminates in a flange 18 which. is designed to fitthe shaft when in position. i

The back edge'of the blade is substantially parallel with the longitudinalcenter line of the shank 15 while the front edge is preferably slantedahead so that the outer end of the bladeis wider than the inner end; The outer edge 19 isformed circular and provided at. each side with a rib20. The forward end of the edge 19 is provided with a pointed portion 21 which greatly assists in breaking up the larger chunks of material to be granulated. vided for each of the holes 12 and is placed in position withthe shank 15, secured therein by means of a key 22 and with the shoulder 17 adjacent to the shaft. The trough 10 is generally filled about three fourths full of material to be granulated. The shaft is then. rotated in a clock-wise direction, as shown in Fig.1, the points 21 will split up the large chunks while the forward edge will cut and break the material" into smaller chunks, and in granulation it will be seen that the forward edge of the blade 14 will wearaway. also thepoint 21. But to pre vent the said point 21 from wearing off and from becoming round, I have prov ded the ribs 19, the blade portion 14 is coinpara ward and outer corner becomingrounded it will have a tendency to become more pointed by being used.

The shoulder 17 forms a brace against the backward movement of the blade 14 helping A blade is proto strengthen the'shank 15, the fiangelS helps to brace the blade from a lateralmovementi The holes 12 are drilled through theshaft so that the shank may be driven out by placing a punch through the opposite end of the hole.

Thus it willbe seen that I have provided a granulator blade so constructed as to" strengthenit and also provide means whereby the point will stay sharpened When usec. Having. thns-*-clescribed -my:---invention, I

ends, the outerv ribsbeing eccentric-to t e inner ribs and having front cuttmg edges in line With the OLltGI'J'GHd OlE"ther"b Od/,@OT' 1 tion,-said shank being intermediate ,oft he front and re'aredges of the saidzbody portion.

Ling curvedside ribs atits inner-and outer ends. and having its front edge shanpened,

1thesaid sharpened edge being; ahead; of the front edge of said body portion,

shank being. intermediate of the "front and rearedges ofs'aid body portion,

"3. A radial grannlator blade, fora rotary shaift', having a radial shank, a shoulder ad- "jacent to the rear side of said shank and lateral ribs atits'peripherical edge. 1

'4. In a device of the class described; a I

rotary shaft, having a series ofradial openandsaid.

ings, a radial blade for each of the said openings, having a shankyand .lateral'ribs at its peripherical edge 5. In a. device of the class described, a

rotary shaft, having a series of radial openngs, a ings-having; a shank, and lateral ribs at its peripherical edge and means for locking said shanks in said openings.

6.111 a device ofthe class described, a"

rotary shaft, having aseriesof-radial open v ings, a radial blade for each of said open- 2; Agr-annlator-blade comprising a body portion and a shank, said body portion havings, having a shanlnand lateral ribs at its peripherical edge, and ashoulder designed to rest on the shaft adjacent "to 'the rear side of the said shank. 7. In a devloe'o't the class described, a rotary shaft, having a series of radial; open- -i1i ;s,a radial blade for each of said open ings, having a shank, and lateral ribs atits peripherical edge, a shoulder designed to rest on the shaft adj acentto the rear side of the shank, and means for locking said shank in :said shaft.

HALVER: R. srnliienr.

radial blade for each of said open- 

